Puzzle · Authentication Profile

Puzzle Io Authentication

Authentication

Puzzle secures its APIs with apiKey and oauth2 across 2 declared security schemes, as derived from its OpenAPI definitions. OAuth 2.0 is offered via the clientCredentials flow(s).

AccountingFintechGeneral LedgerFinancial ReportingBookkeepingStartupsEmbedded AccountingMetrics
Methods: apiKey, oauth2 Schemes: 2 OAuth flows: clientCredentials API key in: header

Security Schemes

oauth2 oauth2
· flows: clientCredentials
apiKey apiKey
· in: header (Authorization)

Source

Authentication Profile

Raw ↑ 
generated: '2026-07-11'
method: derived
source: openapi/puzzle-io-openapi.yml
summary:
  types:
  - apiKey
  - oauth2
  api_key_in:
  - header
  oauth2_flows:
  - clientCredentials
schemes:
- name: oauth2
  type: oauth2
  flows:
  - flow: clientCredentials
    tokenUrl: https://puzzle-api.readme.io/reference
    scopes: 4
  description: OAuth 2.0 with scoped access (for example read:company, read:transactions, read:report).
    Partner credentials are issued after the Puzzle partner technical review.
  sources:
  - openapi/puzzle-io-openapi.yml
- name: apiKey
  type: apiKey
  in: header
  parameter: Authorization
  description: API key authentication via the Authorization header, as described in the Puzzle
    developer docs.
  sources:
  - openapi/puzzle-io-openapi.yml